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19th International conference on solid-state sensors, Actuators and Microsystems, TRANSDUCERS 2017

作者： Lemercier, G. Sekli-Belaidi, F. Vajrala, V.S. Descamps, E. Sojic, N. Arbault, S. Sarry, J.E. Temple-Boyer, P. Launay, J. LAAS-CNRS Toulouse France CRCT-INSERM Toulouse France ISM-CNRS Bordeaux France

ISBN: (纸本)9781538627310

This work deals with the development of electrochemical transducers for the analysis of the metabolic status of mitochondria isolated from leukemic cells. It proposes the use of ring nanoelectrodes (RNE) integrated into microwell arrays for the simultaneous monitoring of the oxygen (O2) consumption and the hydrogen peroxide (H2O2) production. The sensor enabled the real-time recording of the oxygen consumption of approximately 10,000 isolated mitochondria. Solutions are now proposed to detect H2O2 production and to reduce the number of mitochondria under test, targeting the single mitochondrion analysis. © 2017 IEEE.

关键词： Oxygen

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Ultra High Brightness Laser Diode arrays for Pumping of Compact solid state Lasers and Direct applications

Ultra High Brightness Laser Diode Arrays for Pumping of Comp...

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conference on Optics and Photonics for Counterterrorism, Crime Fighting, and Defence VIII

作者： Kohl, Andreas Fillardet, Thierry Laugustin, Arnaud Rabot, Olivier Quantel F-91941 Les Ulis France

ISBN: (纸本)9780819492876

High Power Laser Diodes (HPLD) are increasingly used in different fields of applications such as Industry, Medicine and Defense. Our significant improvements of performances (especially in power and efficiency) and a reproducible manufacturing process have led to reliable, highly robust components. For defense and security applications these devices are used predominantly for pumping of solid state lasers (ranging, designation, countermeasures, and sensors). Due to the drastically falling price per watt they are more and more replacing flash lamps as pump sources. By collimating the laser beam even with a bar to bar pitch of only 400 mu m. cutting edge brightness of our *** achieved Due the extremely high brightness and high power density these stacks are an enabling technology for the development of compact highly efficient portable solid state lasers for applications as telemeters and designators on small platforms such as small UAVs and handheld devices. In combination with beam homogenizing optics their compact size and high efficiency makes these devices perfectly suited as illuminators for portable active imaging systems. For gated active imaging systems a very short pulse at high PRF operation is required. For this application we have developed a diode driver board with an efficiency several times higher than that of a standard driver. As a consequence this laser source has very low power consumption and low waste heat dissipation. In combination with its compact size and the integrated beam homogenizing optics it is therefore ideally suited for use in portable gated active imaging systems. The kWatt peak power enables a range of several hundred meters. The devices described in this paper mostly operate at wavelength between 800 nm and 980nm. Results from diodes operating between 1300 nm and 1550 nm are presented as well.

关键词： High Power Laser Diodes Diode Pumped solid state Lasers Active Imaging Eye Safe Wavelengths

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High Q Ba(Zn_1/3Ta_2/3)O₃ microwave resonator in a closed cavity for sensor applications

High Q Ba(Zn1/3Ta2/3)O3 mic...

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International conference on Recent Advances in Nano Science and Technology (RAINSAT)

作者： Sindam, Bashaiah Raju, K. C. James Univ Hyderabad Sch Phys Hyderabad 500046 Andhra Pradesh India Univ Hyderabad ACRHEM Hyderabad 500046 Andhra Pradesh India

Microwave dielectric resonator having a high Q-factor results in high sensitivity and it can be used as a sensing element in wireless passive sensor systems. In the present work, we demonstrated high Q resonator enclosed in a metallic cavity which is highly sensitive to resonance frequency and quality factor change arising from small test samples kept on the surface of the resonator. The measurements are made at the resonance frequency of TE10 delta mode. The Ba(Zn1/3Ta2/3)O-3 resonators prepared by solid state reaction method exhibits high Q value of > 12,500. The experimental studies have been conducted on different type of rice grains cut to uniform size and shape to explore the response of resonance frequency and Quality factor. The change in effective dielectric constant and loss tangent of resonator with test samples were measured. Our work should provide a general guidance in development of high Q dielectric resonators for sensor applications. (C) 2015 Elsevier Ltd. All rights reserved.

关键词： Ba(Zn1/3Ta2/3)O-3 Dielectric resonators Resonator based sensors Microwave dielectric properties Quality factor VNA

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Combining Real Time Classifiers for Fast and Reliable Electronic Nose response analysis for Aerospace NDTs 28

Combining Real Time Classifiers for Fast and Reliable Electr...

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28th European conference on solid-state Transducers (EUROsensorS)

作者： Salvato, Maria De Vito, Saverio Massera, Ettore Buonanno, Antonio Miglietta, Mara Fattoruso, Grazia Di Francia, Girolamo Portici Res Ctr ENEA Italian New Technol Energy & Sustainable Eco Ple E Fermi 1 I-80055 Partici NA Italy

Fast response and reliability are a prerogative in non-destructive tests specifically in aerospace industry for safety and efficiency reasons. Currently, composite panels bonding, in green aircraft concept, is lacking a validated NDT technique for the bond quality. E-noses equipped with PARC algorithms appear a promising choice to acquire speedily a complete pattern response maximizing reliability. In this paper, combining real time classifiers, we show how to obtain a rapid first-hand response with the possibility of increasing accuracy awaiting for the end of the e-nose measurement cycle. A reject option is casted on the base of classifier self-perceived reliability to nullify false negatives while keeping the false positive rate at minimum. (C) 2014 The Authors. Published by Elsevier Ltd.

关键词： Electronic Noses Industrial applications Aerospace Industry Hybrid sensor arrays Ion Mobility Spectrometers Surface analysis

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ASIC-based Gauss Error Function Module Design for Neural Network Application 13

ASIC-based Gauss Error Function Module Design for Neural Net...

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2016 13th IEEE International conference on solid-state and Integrated Circuit Technology (ICSICT)

作者： Zhi-Tong Qiao Yan Han Jian Lei R.C.C.Cheung Will X.Y.Li Hiao-Xia Han Institute of Microelectronics and Nanoelectronics Zhejiang University Department of Electronic Engineering City University of Hong Kong School of Computer and Engineering Nanjing University of Science and Technology

ISBN: (纸本)9781467397209

The first ASIC-based Gauss error function(GEF module is proposed and fabricated in SMIC 180-nm process in this paper. A novel method is proposed to be used in the design. Experimental results show tha compared with the design based on Taylor expansion method, the proposed design decreases the absolute erro by 99.21%, reduces the area by 77.21% and reduces the delay by 11.96%. It can be used as a Soft Intellectua Property（IP） Core or Digital Signal Processor（DSP） to be easily applied to all kinds of Neural Network applications. The design proposed and the corresponding design and optimization methods can promote the research and development of the implantable neura prosthesis bio-chip and neural network.

关键词： Estimation Field programmable gate arrays OFDM Modulation Filtration Clocks Signal processing algorithms

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On paper colorimetric sensor for ascorbic acid detection 18

On paper colorimetric sensor for ascorbic acid detection

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18th AISEM Annual conference on sensors and Microsystems

作者： Donato, N. Aloisio, D. Leonardi, S. G. Latino, M. Neri, G. Univ Messina Dept Elect Engn Chem & Ind Engn Messina Italy

ISBN: (纸本)9781479985913

In this study, a simple methodology for the development and application of a solid-state sensor for the measurement of ascorbic acid (AA) by means of on paper colorimetric assay, is reported. Ink-jet printing has been used to fabricate paper strips used for the assay. An apparatus for the simple readout of the paper strips, comprising a CMOS camera which allows to acquire RGB (Red, Green, Blue) colors and an image analysis software for data elaboration, has been also developed. The printed paper strips developed allow the determination of AA in practical applications.

关键词： Ink-jet printing Colorimetric AA sensor

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Deep Neural Network Model and FPGA Accelerator Co-Design: Opportunities and Challenges 14

Deep Neural Network Model and FPGA Accelerator Co-Design: Op...

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14th IEEE International conference on solid-state and Integrated Circuit Technology (ICSICT)

作者： Hao, Cong Chen, Deming Univ Illinois Dept Elect & Comp Engn Urbana IL 61801 USA

ISBN: (纸本)9781538644416

With an explosive growth of various neural network algorithms, their high performance implementations on hardware platforms, such as GPUs and FPGAs, are becoming critical as well. Compared to widely used GPUs, FPGAs are considered to be harder for design and optimization even with the help of High Level Synthesis (HLS) tools. However, recent studies have shown that FPGAs can outperform GPUs in speed and power/energy efficiency;both factors are important in machine learning applications. In this paper, we will discuss a simultaneous DNN and hardware accelerator co-design method to push the DNN performance on FPGAs. We first summarize existing techniques and results along this direction, and then propose new ideas to further improve DNN development productivity and design quality. Finally we discuss the challenges we would face and propose some potential solutions.

关键词： Hardware Field programmable gate arrays IP networks Neural networks Computational modeling Acceleration Space exploration

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Chemical microsensors based on polymer fiber composites

Chemical microsensors based on polymer fiber composites

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conference on Chemical and Biological Sensing VI

作者： Kessick, R Levit, N Tepper, G Sentor Technol Inc Glen Allen VA 23059 USA

ISBN: (纸本)0819457809

There is an urgent need for new chemical sensors for defense and security applications. In particular, sensors are required that can provide higher sensitivity and faster response in the - field than existing baseline technologies. We have been developing a new solid-state chemical sensor technology based on microscale polymer composite fiber arrays. The fibers consist of an insulating polymer doped with conducting particles and are electrospun directly onto the surface of an interdigitated microelectrode. The concentration of the conducting particles within the fiber is controlled and is near the percolation threshold. Thus, the electrical resistance of the polymer fiber composite is very sensitive to volumetric changes produced in the polymer by vapor absorption. Preliminary results are presented on the fabrication and testing of the new microsensor. The objective is to take advantage of the very high surface to volume ratio, low thermal mass and linear geometry of the composite fibers to produce sensors exhibiting an extremely high vapor sensitivity and rapid response. The simplicity and low cost of a resistance-based chemical microsensor makes this sensing approach an attractive alternative to devices requiring RF electronics or time-of-flight analysis. Potential applications of this technology include battlespace awareness, homeland security, environmental surveillance, medical diagnostics and food process monitoring.

关键词： chemical sensor microsensor electrospinning polymer fiber

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Photopatterned PLED arrays for biosensing applications

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MICROELECTRONIC ENGINEERING 2009年第4-6期86卷 1511-1514页

作者： Vasilopoulou, Maria Georgiadou, Dimitra G. Palilis, Leonidas C. Botsialas, Athanasios Petrou, Panagiota S. Kakabakos, Sotirios E. Argitis, Panagiotis NCSR Demokritos Inst Microelect GR-15310 Aghia Paraskevi Greece NCSR Demokritos Inst Radioisotopes Radiodiagnost Prod GR-15310 Aghia Paraskevi Greece

A solid-state optical biosensor integrated with a single layer flexible blue Polymer Light Emitting Diode (PLED) as the light source was demonstrated and used for the detection of biomolecules labeled with two different fluorescent dyes. An anti-rabbit IgG antibody labeled with the fluorescent dyes, that was adsorbed on the opposite side of a polyethylene tetraphthalate (PET) flexible substrate, was excited by light emitted from the PLED. Light is then absorbed by the dye-labeled antibody resulting in a red shift of the polymer emission spectrum. Emission originating from the dye is also observed. The emission spectral shift and its efficiency depend primarily on the concentration of the biomolecule solution, the overlap between the emission spectra of the polymer and the absorption spectra of the dye and the PLED emission characteristics. Biomolecules immobilized onto distinct areas of a plastic substrate might then selectively be detected with high sensitivity after reacting with fluorescently labeled counterpart molecules. (C) 2009 Elsevier B.V. All rights reserved.

关键词： Optical sensor Photopatterned multi-colour PLEDs Dye-labeled biomolecules Fluorescent probe

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Silicon nanowire based ring shape force sensor for sensorized guidewires

Silicon nanowire based ring shape force sensor for sensorize...

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2013 17th International conference on solid-state sensors, Actuators and Microsystems, TRANSDUCERS and EUROsensorS 2013

作者： Han, B. Yoon, Y.-J. Hamidullah, M. Lin, A.T.-H. Park, W.-T. Institute of Microelectronics ASTAR Singapore Nanyang Technological University Singapore Seoul National University of Science and Technology Korea Republic of

ISBN: (纸本)9781467359818

This paper presents the development of a ring shaped force sensor for sensorized guidewire applications. The sensor comprises a suspended ring structure located at the center of four suspended beams that can be integrated on the distal tip of a guidewire. SiNWs with a length of 6 μm and a cross section of 90 nm × 90 nm are embedded at the anchor of each silicon bridge as the piezoresistive sensing elements. Taking advantage of the high sensitivity of SiNWs, the fabricated sensor was capable to detect small displacement in nm ranges with a sensitivity of 13.4 × 10-3 μm-1 in the z-direction. This force sensor showed high linearity (>99.9%) to the applied load and no obvious hysteresis was observed. © 2013 IEEE.

关键词： Nanowires

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